18889739

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{379}}^1$

素因数の和:610

約数の個数: 16

約数和(自身を含む): 21669120

約数和(自身を除く): 2779381

約数列:

[1, 11, 23, 197, 253, 379, 2167, 4169, 4531, 8717, 49841, 74663, 95887, 821293, 1717249, 18889739]

約数ペア:

[(1, 18889739), (11, 1717249), (23, 821293), (197, 95887), (253, 74663), (379, 49841), (2167, 8717), (4169, 4531)]